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Light At The End Of The Tunnel

systems administration meanderings

Installing CentOS 5 on a mac pro

Not as easy as the title suggests, what a surprise! Before I went and overwrote the existing OS on the Mac Pro, I downloaded the CentOS 5 live CD to see whether it worked. There were good signs from this wikipedia article. First thing is how to get the Mac Pro to boot from the CD:- 1. Turn on the Mac Pro 2. Hold down the left button on the mouse 3. Read more →

Harry Potter and the Deathly Hallows part 1

Well I went to see this movie today. I have to say I enjoyed most of it. It tried to keep to the essence of the book, but it is hard, there is so much detail in the book, that trying to convey some of that in a film was a hard ask. Despite this issue I think it did well. I thought at times the actors looked a little old for the role, but it’s a minor point. Read more →

“It’s hunting not fishing”

This is the introduction from Phippsy as we started on a fishing trip on the Noosa river. A good move as their was a swell running on the open sea, would have been a rough trip. Instead we, my father-in-law, his mate, and I, spent a very pleasant morning fishinghunting for flathead and anything else that would come our way. Firstly, we would be using “plastics”, these you attach to a conventional hook and weight setup, and then cast as usual. Read more →

Integrating icinga/nagios with puppet

We are trialling Icinga at work as the interface to Nagios is a little behind the times, but the instructions here are applicable to either. We run a cluster and we needed a way to monitor the nodes within that cluster. To get each node to boot and install an OS we use Cobbler, and to ensure that each node is configured in the same manner we use puppet. Getting a node to be automatically added to puppet, has been covered elsewhere. Read more →

Solar controller replacement

About two years ago my automatic solar controller broke down. The replacement is $500, with a power controller being a further $500. This was a bit too much. I came across an Ethernet based power controller, and decided that I can use it as the basis for a Linux based solar controller. The solar controller’s job is to turn on the pump for the pool, to allow it to filter the water, and in the process of moving the water reduce the ability for algae to form. Read more →